Chopping-machine.



PATENTED SEPT. 1, 1903.

A. SGHYIA.

SHOPPING MACHINE.

APPLIUATION rmm NOV. 26, 1902.

no MODEL.

UNlTED STATES Patented September 1, 1903.

PATENT OFFICE.

ARNOLD SOHYIA, OF NEUSALZ-ON-THE-ODER, GERMANY, ASSIGNOR TO THE FIRM OF EISENHUTTEN UND EMAILLIRWUERK, OF NEUSALZ-ON-TI'IE- ODER, PRUSSIA, GERMANY.

SHOPPING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 737,783, dated September 1, 1903.

Application filed November 26,1902- Serial No. 132,962. (No model.)

To all whom it may concern:

Be it known that I, ARNOLD SOHYIA, a subject of the King of Prussia, German Emperor, residing at the city of Neusalz-on-the-Oder,

5. in the Kingdom of Prussia, German Empire,

have invented certain new and useful Improvements in Chopping-Machines; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in chopping machines in which the meat or the other material being minced is forced through a perforated disk by means of a worm and rotating cutter.

In my machine the rear bearing for the Worm is constructed in two separate parts. The outer member is provided with a screwthread of high pitch, so that the part may be adjusted axially in the similarly-threaded casing. The inner member of the bearing, on the other hand, is rounded and fits into the correspondingly-formed interior of the outer member. The perforated disk is provided with a bearing-ring fitting to the casing, the

0 contacting parts presenting a rounded surface for the purpose of insuring a uniformly tight joint, while admitting of immediate separation of the parts and removal of the worm.

My invention consists in the combination of a bearing member axially adjustable in the casing of the machine with a worm provided with a rounded friction-surface.

My improvement is illustrated by the appended drawings, in which-- 0 Figure 1 is a longitudinal section, the worm, cutter, and perforated disk being shown in elevation. Fig. 2 shows the cutter in end clevation. Fig. 3 is a similar view of the perforated disk. Fig. 4 is a like view of a modified form of such disk.

The machine consists of a casing a, worm b, cutter c, and perforated disk (Z. The rear end of the worm is provided with a rounded part f, forming a friction-surface. The outer member f, which receives the part f, is provided with a screw-thread. The casing a has the form of a cylinder open at both ends and provided with a hopper. At the rear end it is internally screwed at e with about three threads to the inch, so that it may receive the threaded bearing f. The front end of the worm-shaft is mounted in the perforated disk d, which is carried by the three projections 9 g g of the casing. The disk is provided with three peripheral slots h h h,whereby it can be pushed over the projections g g g, whereupon it is turned so that the wedge-shaped surfaces h h it come below the projections g g g, thus preventing retreat of the disk. The disk at is provided with a ring 1', having a rounded or conical surface fitting a conical surface in the casing a. In this manner a permanently tight joint is made between disk and easing, the rounded surface admitting of slight ball movement of the disk at the joint. Thus if one of the projections 9 lies somewhat lower than the others the rounded surface t at this part will retreat from the conical surface to a certain extent. At the other parts, on the contrary, the ring'i will advance somewhat farther into the casing-that is to say, the disk automatically assumes that position in which it lies against all three projections g g g. From this it will be clear that whatever the position of the disk the rounded surface i always insures a perfectly tight joint. At the other end of the casing the parts f and f, owing to their rounded surfaces admitting of free movement, insure correct position of the worm relatively to the disk d. The cutter 0 will therefore rotate with perfectly uniform motion.

To take the machine to pieces, it is only necessary to twist the disk cl until the slots h h h coincide in position with the projections g g g, when the disk can be drawn off. The part f at the opposite end has simply to be unscrewed.

Having thus described my invention, what 5 I claim as new, and desire to secure by Letters Patent, is j 1. In a food-chopping machine, the combination with an open-ended tubular casing of uniform diameter having a thread formed in I00 one end, and a conical bearing-surface at the other, a threaded end plate closing the threaded end of the casing and having a socket, a feed-screw in the casing having a ball thereon to fit said socket, a perforated plate at the other end of the casing having a conical bearing-face to fit the conical bearing-surface, a

having internal grooves cut therein, a perforated plate having cut-away portions to register with the projections and wedge-shaped surfaces to engage aside of the groove in the projection, a feed-screw, a ball-shaped element on the screw to fit said socket, said feedscrew mounted in the end plates and a cutter mounted at the end of the screw to cooperate with the perforated plate, substantially as described.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

ARNOLD SOHYIA.

Witnesses:

HENRY HASPER, WOLDEMAR HAUPT. 

